Bluesil Fluid 47 V 500,000
BLUESIL FLD 47V 500,000 — linear PDMS silicone oil with a viscosity of 500,000 mm²/s. For use in thermostats, as a dielectric, release agent, lubricant, and additive.
BLUESIL FLD 47V 500,000 — linear polydimethylsiloxane (PDMS).
Viscosity 500,000 mm²/s at 25 °C, flash point ≥ 300 °C, stable from -50 °C to +200 °C. Non-reactive silicone oil for industrial applications: thermostat oil, dielectric, release agent, RTV thinner, paint additive, water repellent. 36-month shelf life. From our Swiss warehouse.
documents
HS code:
39100000
BLUESIL FLD 47V 500,000 – linear polydimethylsiloxane (PDMS) silicone oil
BLUESIL FLD 47V 500,000 is part of Elkem’s 47V series— linear polydimethylsiloxanes (PDMS) with defined viscosities. These silicone oils are non-reactive, remain stable for decades, and are used in dozens of industrial applications—as thermal oils, dielectrics, release agents, lubricants, paint additives, and water repellents.
The viscosity of 500,000 mm²/s (cSt) determines the application profile: low viscosities (V50–V350) are suitable for spray/wipe applications, anti-scratch additives, and high-frequency dielectrics; medium viscosities (V500–V5000) for thermostat applications and lubrication; high viscosities (V12500+) for thick-film coatings and mechanically stressed bearing lubrications.
Main areas of application
- Thermostatic oil for heat exchangers – stable from −50°C to +200°C
- Dielectric oil for capacitor impregnation and transformers
- Anti-smudge agent for preventing toner smudging in photocopiers and printers
- Thinners/plasticizers for RTV silicones and silicone sealants
- Textile lubrication and heat protection for synthetic sewing threads
- Ingredient in care products: polishes, waxes, floor and furniture polishes
- Color additives: anti-cratering, anti-fish-eye, anti-scratch effects
- Water repellency of powders (for paints, plastics) and glass fibers
- Release agent for plastic and metal molds
- Lubrication of elastomer/plastic on metal
- Surfactant for styrene-butadiene foams
Specifications
| Viscosity @ 25 °C | 500,000 mm²/s (cSt) |
| Density @ 25 °C | 0.97 g/cm³ |
| Color | Colorless, clear |
| Flash point (closed cup) | ≥ 300 °C |
| freezing point | -50°C |
| Refractive index @ 25°C | 1,403 |
| Surface tension @ 25°C | 21 mN/m |
| thermal conductivity | 0.16 W/m·°C |
| Specific heat capacity | 1.46 J/g·°C |
| Dielectric constant @ 1 kHz | 2,80 |
| Dielectric strength | 16 kV/mm |
| Operating temperature range | −50°C to +200°C |
| Shelf Life | 36 months (at −20 to +50 °C) |
Special features
- Excellent temperature resistance at both high and low temperatures
- Good flame resistance (flash point > 280 °C)
- Good dielectric properties
- Low surface tension
- High compressibility
- No aging due to atmospheric factors (oxygen, ozone, water, light)
- Good resistance to oxidation
- Minimal change in viscosity with temperature (viscosity index > 200)
- High shear stability under prolonged stress
BLUESIL FLD 47V 500,000 is supplied by SILITECH AG with technical support, a batch certificate, and shipping from our Swiss warehouse within 24 hours.
Frequently Asked Questions About BLUESIL FLD 47V 500,000
Questions about polydimethylsiloxane silicone oil with a viscosity of 500,000 cSt
PDMS is a synthetic silicone oil with a repeating Si-O-Si chain as its backbone. Unlike mineral oils, it is: significantly more thermally stable (up to +200°C without decomposition), chemically inert (no reaction with oxygen or ozone), more temperature-independent in viscosity (viscosity index > 200 vs. ~100 for mineral oils), and has a very low surface tension (21 vs. 25–30 mN/m). However, it is more expensive.
Rule of thumb: V50–V100 for spraying and high-frequency dielectrics; V300–V1,000 for most industrial applications (thermostats, lubrication, release agents); V5,000–V30,000 for thick-film coatings and mechanically stressed bearings; V100,000+ for special applications with very long dwell times or extreme shear stress. If in doubt, we at SILITECH would be happy to advise you.
Yes—but no more than 10% by weight of the base component. Any more than that noticeably impairs the final properties (Shore hardness, tensile strength). The additive is unproblematic only in platinum-catalyzed addition-curing RTVs —in condensation-curing (tin-catalyzed) RTVs, larger amounts can also be added, but adhesion to substrates decreases.
When stored in its unopened original packaging at temperatures between −20 and +50°C, the oil remains stable for 36 months —a very long shelf life. The reason: PDMS is chemically inert and does not degrade due to exposure to atmospheric oxygen. After opening, the container should be kept sealed to prevent contamination. The viscosity remains virtually constant throughout the entire storage period.
product specifications
| Physical properties | |
|---|---|
| Paint cured | Transparent |
| Self-leveling | Yes |
| consistency | Flowable |
| product information | |
|---|---|
| container | 1 kg or 5 kg or 25 kg |
| brand | Bluesil |
| manufacturer | Elkem Silicones |
| Number of components | 1K (single-component) |
| mixing ratio | Single-component |
| Additional features | |
|---|---|
| UV resistance | Yes |
| product approvals | |
|---|---|
| food contact | No |
| Suitable for medical use | No |
| Areas of application | |
|---|---|
| Main application | Protective coating (conformal) |
| Electrical Properties | |
|---|---|
| Electrical insulation | Yes |
| keywords | |
|---|---|
| keywords | |
| processing | |
|---|---|
| Viscosity of the mixture | 500,000 mPa·s |
| Physical & Thermal | |
|---|---|
| Density (23°C) | 0.97 g/cm³ |
| flash point | 300.0 °C |
| Refractive index n (20°C) | 1.403 |
| Temperature resistance (duration) | -50 to 200 °C |
| Peak temperature (short-term) | 200 °C |
| thermal conductivity | 0.16 W/(m·K) |
| Electrical specifications | |
|---|---|
| Dielectric constant ε (1 kHz) | 2.8 |
| Dielectric strength | 16.0 kV/mm |
| Forward resistance | 1e+15 Ω·cm |
| storage | |
|---|---|
| Shelf life in original packaging | 36 months |
| Storage temperature | -20 to 50 °C |